Xenostegia tridentata

戟葉菜欒藤

Xenostegia tridentata (L.) D. F. Austin & Staples

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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名彙資訊

學名發表文獻

D. F. Austin & Staples, Brittonia 32(4): 533. 1980.

台灣首次記錄發表文獻

Staples & Yang, Flora of Taiwan, second edition 4: 383. pl. 170. photo 224. 1998. (Fl. Taiwan 2nd edit., 台灣植物誌第二版)

異名

Merremia tridentata (L.) Hallier f. ssp. hastata Oostst.

Lu, Quarterly journal of Chinese forestry 6(1): 152. 1972. (Quart. J. Chin. For., 中華林學季刊)

各語言俗名

日

ほそばあさがお.

參考資料

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)

特徵描述

生活型

herb

形態特徵

Stems prostrate, glabrous or slightly hairy.
Leaves linear or linear-oblong, 2–3 cm long, 1.5–4 mm wide, somewhat contracted above base, apex gradually attenuate, distinctly mucronate, base with more or less auriculate dentate auricles, margins above base entire or indistinctly undulate; petiole to 3 mm long.
Cymes few-flowered; peduncle 1–8 cm long, glabrous or pubescent near base; pedicel glabrous, 6 mm long, thickened in fruit, to 15 mm long; bract subulate; flower buds narrowly conical, acute, apex of sepals somewhat curved outwards; sepals lanceolate or ovate-lanceolate, acuminate, 5–10 mm long, subequal; corolla pale yellow, white or with a brown or purple center, glabrous, 12–20 mm long.
Capsules globose or ovoid, glabrous, pericarp papery, dissepiment persistent; seeds glabrous, dull black or dark gray, 2.5–3 mm long.

分布

台灣 : in thickets at low elevations in the center and south.
世界 : Tropical Asia, Africa and Australia.

引證標本

TAICHUNG: Kuantuchi, Ou 5365. CHANGHUA: Changhua, Wang et al. s. n. NANTOU: Aboriginal village, Yeh s. n. CHIAYI: Fanlu, Yen 6856. KAOHSIUNG: Yeh s.n. PINGTUNG: Neipu, S. Z. Yang 25103, Chang 18350; Wutai, Liu et al. 749. TAITUNG: Chihpen, Lin & Lin 684; Tawu, Wang & Yang 8954.